He says it will benefit victims of crime, child witnesses to crime and victims of family violence across the state.

"It's for both victim support service and the child witness service in Carnarvon, Geraldton, Bunbury, Northam, Karratha, Esperance and the Kalgoorlie-Boulder region in addition to the $2.8 million that's already being provided annually for the victim support services," he said.

"As to whether more staff will be hired is a matter for the department.

"This will expand the number of hours that are available for those services."

Mr Mischin says the funding boost will deliver 7.5 extra hours of service in Bunbury.